In my question about Jedi Naval Ranks? I asked what the different ranks were in the Republic military. It came with an all encompassing "Commander" tag for the Jedi, but made me question another piece of the puzzle.
The question left unanswered was what kind of military branches does the Republic military have, and how are the different forces broken down to allow for a streamlined command structure (Admiral Tench vs General Kenobi, etc.)?
I'm offering a bounty looking for an answer drawing from credible and/or official sources.
Canon preferred, Legends canon sources will not be accepted, but speculation may be used if provided in conjunction with listed canon citations.